%0 Journal Article %A Yu. P. Krasovskii %T Differential properties of solutions of elliptic boundary-value problems with power singularities on the right-hand sides %J Izvestiya. Mathematics %D 1971 %P 211-219 %V 5 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1971_5_1_a11/ %G en %F IM2_1971_5_1_a11